> ## Documentation Index
> Fetch the complete documentation index at: https://docs.valar.space/llms.txt
> Use this file to discover all available pages before exploring further.

# Viewing Measurements

> Visualize, filter, and manage measurement data

> For the complete documentation index, see [llms.txt](/llms.txt).

The Measurements page provides visualization and management tools for your measurement data. View measurements in interactive charts, filter by various criteria, and manage outlier status.

**Route:** `/orbits/measurements/data`

## Page Layout

The page uses a split-view design with a plot panel on the left and a table panel on the right:

<img src="https://mintlify.s3.us-west-1.amazonaws.com/valar-8bbb18b5/images/measurements-data.png" alt="Measurements Data" />

When measurements are selected, a floating action bar appears at the bottom:

<img src="https://mintlify.s3.us-west-1.amazonaws.com/valar-8bbb18b5/images/measurements-toolbar.png" alt="Measurements Toolbar" title="Measurements Toolbar" className="mx-auto" style={{ width:"88%" }} />

## Filtering

### Spacecraft Filter

Filter measurements by spacecraft. Click to open a multi-select dropdown, check/uncheck spacecraft, and click **Apply** to confirm.

### Time Range Filter

| Option    | Label      | Description                       |
| --------- | ---------- | --------------------------------- |
| **day**   | Today      | From today at 00:00:00 UTC to now |
| **week**  | Last Week  | Last 7 days from midnight         |
| **month** | Last Month | Last 30 days from midnight        |

<Info>
  Only preset time ranges are available. There is no custom date range picker.
</Info>

### Measurement Type Selector

| Type        | Description             | Chart Display                               |
| ----------- | ----------------------- | ------------------------------------------- |
| **RANGE**   | Distance measurements   | Single chart: Range (m)                     |
| **RADEC**   | Sky coordinates         | Two charts: RA (deg) + DEC (deg)            |
| **AZEL**    | Pointing angles         | Two charts: Azimuth (deg) + Elevation (deg) |
| **PV**      | Position & velocity     | Six charts: X, Y, Z (m) + Vx, Vy, Vz (m/s)  |
| **DOPPLER** | Range-rate observations | Single chart: Range-rate (m/s)              |

The selector auto-selects the first available type when data loads and only shows types that have data.

### Advanced Filters

Click **More Filters** to expand additional filtering options.

#### Outlier Status Tabs

| Tab          | Shows                                  | Icon            |
| ------------ | -------------------------------------- | --------------- |
| **Accepted** | Only non-outlier (normal) measurements | Green checkmark |
| **Rejected** | Only outlier measurements              | Red X           |
| **All**      | All measurements regardless of status  | None            |

#### Sensors Filter

Click **Sensors** to open a popover with all available sensors. Click sensors to toggle selection, then click **Apply** to filter.

#### Files Filter

Click **Files** to open a popover with all source files. Click files to toggle selection, then click **Apply** to filter.

## Grouping

Click **Group By** to change how measurements are organized:

| Option         | Table Behavior                               | Chart Behavior                        |
| -------------- | -------------------------------------------- | ------------------------------------- |
| **Sensor**     | Groups by sensor ID with collapsible headers | Colors points by sensor, shows legend |
| **Spacecraft** | Groups by spacecraft name                    | Colors points by spacecraft           |
| **File**       | Groups by source file name                   | Colors points by file                 |
| **None**       | Flat list (no grouping)                      | Single color, no legend               |

### Group Header Actions

When grouping is enabled, each group header provides:

* **Chevron**: Click to expand/collapse the group
* **Select All**: Select all measurements in the group (appears on hover)
* **Clear**: Deselect all in group (appears when any are selected)

## Sorting

Click the **↓ Epoch** / **↑ Epoch** button to toggle sort order:

| State   | Description               |
| ------- | ------------------------- |
| ↓ Epoch | Newest first (descending) |
| ↑ Epoch | Oldest first (ascending)  |

## Plot Panel

### Statistics Card

Above the charts, a statistics card displays:

* **Total**: Count of all measurements
* **Accepted**: Count with green checkmark and percentage
* **Rejected**: Count with red X and percentage

### Interacting with Data Points

**Hover** over any scatter point to see a tooltip with:

* Timestamp
* Value
* Sensor
* Status (Accepted/Rejected)

**Click** a data point to select it:

* Point becomes highlighted
* Tooltip stays visible with action buttons
* Corresponding table row highlights and scrolls into view

### Accept/Reject from Plot

When a point is selected, the tooltip shows an action button:

| Current Status | Button Shown | Action               |
| -------------- | ------------ | -------------------- |
| Accepted       | **Reject**   | Marks as outlier     |
| Rejected       | **Accept**   | Removes outlier flag |

## Table Panel

### Row Information

Each measurement row displays:

| Element     | Description                                            |
| ----------- | ------------------------------------------------------ |
| Checkbox    | Click to select for bulk actions (appears on hover)    |
| Status Icon | ✓ green (accepted) or ✗ red (rejected)                 |
| Values      | Formatted by type (e.g., "RA 12.3456° DEC -45.6789°")  |
| Epoch       | Timestamp in "Jan 15, 14:32:01" format                 |
| More Menu   | **⋮** button for additional actions (appears on hover) |

### Row Actions

**Click a row** (not the checkbox) to focus it:

* Row highlights with a colored ring
* Corresponding point on chart highlights

**Click the checkbox** to select for bulk actions:

* Row enters selection state
* Floating bulk actions bar appears

### Row Context Menu

Click the **⋮** button on any row to access:

| Action              | Description                                    |
| ------------------- | ---------------------------------------------- |
| **Accept / Reject** | Toggle outlier status for this measurement     |
| **Accept File**     | Mark ALL measurements in this file as accepted |
| **Reject File**     | Mark ALL measurements in this file as rejected |
| **Delete File**     | Delete ALL measurements from this file         |

## Bulk Actions

When one or more rows are selected, a floating toolbar appears at the bottom.

### Selection Count

Shows the number of selected measurements out of total visible.

### Select All

Selects all visible measurements (after filters are applied).

### Reject / Accept Actions

| Option          | Description                                         |
| --------------- | --------------------------------------------------- |
| **Reject**      | Mark selected measurements as outliers              |
| **Accept File** | Mark ALL measurements in selected files as accepted |
| **Reject File** | Mark ALL measurements in selected files as rejected |

### Delete File

Opens a confirmation dialog to delete ALL measurements from the selected file(s).

<Warning>
  **Delete File** removes all measurements from the source file(s), not just the selected rows. This action cannot be undone.
</Warning>

### Clear

Deselects all currently selected rows.

## Cross-Component Synchronization

The plot and table panels stay synchronized:

| Action              | Effect                                    |
| ------------------- | ----------------------------------------- |
| Click point in plot | Row highlights and auto-scrolls into view |
| Click row in table  | Point highlights on chart                 |
| Click away          | Highlights clear in both panels           |

## Color Coding

### Status Colors

| Status           | Color | Icon |
| ---------------- | ----- | ---- |
| Accepted         | Green | ✓    |
| Rejected/Outlier | Red   | ✗    |

### Series Colors

When grouping is enabled:

* **Sensor grouping**: Each sensor gets a unique color
* **Spacecraft grouping**: Uses spacecraft context colors
* **File grouping**: Each file gets a unique color
* **No grouping**: Single default color

The legend displays below the chart, or as color dots in the filter buttons when **More Filters** is visible.

## Loading States

While data is loading, the page displays skeleton placeholders:

* **Table**: 8 skeleton rows with placeholder shapes matching the actual row layout
* **Plot**: Loading indicator while chart data is prepared

## Chart Limitations

The scatter plot is view-only with the following characteristics:

| Feature             | Supported                |
| ------------------- | ------------------------ |
| **Zoom**            | No                       |
| **Pan**             | No                       |
| **Hover tooltips**  | Yes                      |
| **Click to select** | Yes                      |
| **Data sampling**   | No (all points rendered) |

<Note>
  Large datasets render all data points without sampling. For very large measurement sets, this may affect chart performance.
</Note>

## Related Pages

* [Import measurements](/features/measurements-import): Upload TDM, OEM, and SP3 files
* [Manage sensors](/features/tracking-sensors): Configure ground stations for tracking